Translation

Lord Balarāma became extremely angry upon seeing how this member of the sūta caste had failed to stand up, bow down or join his palms, and also how he was sitting above all the learned brāhmaṇas.

Purport

Romaharṣaṇa had failed to greet Lord Balarāma in any of the standard ways for welcoming a superior personality. Also, despite being of a lower caste, he sat in a seat above the assembly of exalted brāhmaṇas.